May weather forecast
Theresa, WI

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Weather in May

The last month of the spring, May, is a refreshing month in Theresa, Wisconsin, with an average temperature fluctuating between 64.9°F (18.3°C) and 46.9°F (8.3°C).

Temperature

As Theresa transitions into May, the average high-temperature is observed to rise from a cool 52.3°F (11.3°C) in April to an enjoyable 64.9°F (18.3°C). During the month of May, the nighttime temperature falls to an average of 46.9°F (8.3°C).

Humidity

In May, the average relative humidity is 79%.

Rainfall

The months with the most rainfall are May and June, with an average 2.6" (66mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows in Theresa. During 0.3 snowfall days, in May, Theresa aggregates 0.04" (1mm) of snow. In Theresa, during the entire year, snow falls for 54.7 days and aggregates up to 13.82" (351mm) of snow.

Daylight

The average length of the day in May is 14h and 44min.
On the first day of the month, sunrise is at 5:45 am and sunset at 7:56 pm. On the last day of May, sunrise is at 5:15 am and sunset at 8:27 pm CDT.

Sunshine

In Theresa, the average sunshine in May is 8.4h.

UV index

In Theresa, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum daily UV index of 5 during May morphs into the following directions:
Take precautions - Protection against sun damage is advised. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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Frequently asked questions

What is the usual temperature for Theresa in May?

In Theresa, 64.9°F (18.3°C) is the average high-temperature and 46.9°F (8.3°C) is the average low-temperature during May.

What is the average humidity in May in Theresa?

In Theresa, Wisconsin, the average relative humidity in May is 79%.

What is the wettest month in Theresa?

The months with the most rainfall in Theresa, Wisconsin, are May and June, with an average 2.6" (66mm) of precipitation.

How much does it rain in Theresa in May?

In Theresa, in May, it is raining for 15.6 days, with typically 2.6" (66mm) of accumulated precipitation.

What is the last month it snows in Theresa?

May is the last month it regularly snows in Theresa, Wisconsin. During 0.3 snowfall days, in May, Theresa aggregates 0.04" (1mm) of snow.

How many hours of daylight does Theresa have in May?

In Theresa, the average day length in May is 14h and 44min.

When is the sunrise / sunset in May in Theresa?

On the first day of May, sunrise is at 5:45 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:15 am and sunset at 8:27 pm CDT.

How long on average sun shines in May in Theresa?

In May, the average sunshine duration in Theresa is 8.4h.

How high is the UV index in May in Theresa?

In May, the average daily maximum UV index in Theresa, Wisconsin, is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Theresa, WI

Average temperature in May - Theresa, WI
  • Average high temperature in May: 64.9°F

The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (22.6°F).

  • Average low temperature in May: 46.9°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

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Average pressure in May
Theresa, WI

Average pressure in May - Theresa, WI
  • Average pressure in May: 29.96"Hg

The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in May
Theresa, WI

Average wind speed in May - Theresa, WI
  • Average wind speed in May: 8.9mph

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).

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Average humidity in May
Theresa, WI

Average humidity in May - Theresa, WI
  • Average humidity in May: 79%

The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is April (76%).

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Average rainfall in May
Theresa, WI

Average rainfall in May - Theresa, WI
  • Average rainfall in May: 2.6"

The wettest months (with the highest rainfall) are May and June (2.6").
The driest months (with the least rainfall) are February and December (0.83").

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Average rainfall days in May
Theresa, WI

Average rainfall days in May - Theresa, WI
  • Average rainfall days in May: 15.6 days

The month with the highest number of rainy days is July (16.2 days).
The months with the least rainy days are January and February (3.1 days).

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Average snowfall in May
Theresa, WI

Average snowfall in May - Theresa, WI
  • Average snowfall in May: 0.04"

The month with the highest snowfall is January (3.35").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Theresa, WI

Average snowfall days in May - Theresa, WI
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (13.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Theresa, WI

Average daylight in May / Average sunshine in May - Theresa, WI
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in May: 8h and 2min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

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Average sunshine days in May
Theresa, WI

Average sunshine days in May - Theresa, WI
  • Average sunshine days in May: 13.3 days

The month with the most sunshine days is October (16.7 days).
The month with the least sunshine days is July (11.7 days).

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Average UV index in May
Theresa, WI

Average UV index in May - Theresa, WI
  • Average UV index in May: 5

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).

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Average cloud cover in May
Theresa, WI

Average cloud cover in May - Theresa, WI
  • Average cloud cover in May: 44

The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 36).

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Average visibility in May
Theresa, WI

Average visibility in May - Theresa, WI
  • Average visibility in May: 6mi

The months with the highest visibility are March, April, May, June, October and November (6mi).
The months with the lowest visibility are January, February, July, August, September and December (5mi).

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Theresa, Wisconsin, USA

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